Little Bear's Adventures of The Rescuers is an upcoming Little Bear/Disney crossover to be made by Hiatt Grey.
The film begins in an abandoned river boat in Devil's Bayou, where an orphan girl, Penny, drops a message in a bottle containing a plea for help into the river. The bottle is carried out to sea and washes up in New York and arrives at the pier where the mice discover it.
That morning, the mice meet at the United Nations, where it is recovered by the Rescue Aid Society (United Nations Organization). The Hungarian representative, Miss Bianca, volunteers to accept the case and chooses the janitor, Bernard, as her co-agent. It starts to rain at night when the bus stops and pulls over. Bernard and Miss Bianca get off the bus and walk on the sidewalk to hide in the post box. When the mice are walking to the zoo, Bernard becomes scared of lions and wants to get out of there. The two visit Morningside Orphanage, where Penny lived, and meet an old cat named Rufus. He tells them about a wicked woman named Madame Medusa who once tried to lure Penny into her car and may have abducted Penny this time.
The mice travel to Medusa's pawn shop, where they discover that she and her partner Mr. Snoops are on a quest to find the world's largest diamond, the Devil's Eye. As the mice talk to the Pan Am Tower, they head to the Fly Albatross Air Service. With the help of an albatross named Orville, and a dragonfly named Evinrude, the mice follow Medusa and Mr. Snoops to the bayou. There, they learn that Penny was captured and made to enter a hole that leads down into the pirates' cave where the Devil's Eye is located.
Thanks to Miss Bianca's perfume, the mice attract the attention of Medusa's pet crocodiles, Brutus and Nero. Bernard and Miss Bianca escape and find Penny. The following morning, Medusa and Mr. Snoops send Penny down into the cave to find the gem, unaware that Miss Bianca and Bernard are hiding in her skirt pocket. The three soon find the stone within a pirate skull; as Penny pries the mouth open with a sword, the mice push it out from within, but soon the oceanic tide rises and floods the cave. Miss Bianca, Penny, and Bernard barely manage to retrieve the diamond and escape.
The greedy Medusa steals the diamond for herself and hides it in Penny's teddy bear. When she trips over a cable, Medusa loses the bear to Penny, who runs away with it. Medusa retaliates with gunfire, causing the mice to flee until they are met by Brutus and Nero, her crocodiles. Bernard and Miss Bianca trick them into entering a cage-like elevator, trapping them.
Two of the gang set off Snoops' fireworks, making the boat sink and freeing Brutus and Nero. Penny and the gang commandeer Medusa's "swamp mobile". Medusa pursues them on Brutus and Nero, viciously whipping the two crocodiles as she does so, but crashes and is left clinging to the boat's smoke stacks with the angered Brutus and Nero attacking below.
Back in New York, the Rescue Aid Society watch TV to hear that the Devil's Eye is given to the Smithsonian Institution and Penny is adopted by a new father and mother. Bernard and Miss Bianca remain partners in the Rescue Aid Society's missions and soon after departing on Orville, accompanied by Evinrude, to a new rescue mission.
- Blythe Baxter, Zoe Trent, Pepper Clark, Penny Ling, Vinnie Terrio, Sunil Nevla, Minka Mark, Russell Ferguson, Dudley Puppy, and Kitty Katswell guest star in this film.
- The end credit song will be "Amsterdam" performed by Imagine Dragons.
- The storyline continues in Little Bear's Adventures of The Rescuers Down Under.